Advances in technology allow scientists to measure intricate details about the human body that greatly enhance understanding of health, disease and aging.
Telomeres — which are protective caps on the ends of our chromosomes — are DNA sequences that generally shrink with age, acting as a “molecular clock” in human cells. Every time cells divide, telomeres shorten until they become critically short and signal the cell to stop dividing. For these reasons, there has been great interest in the ability of this biomarker to predict mortality.
Credit: Woodrow Wilson School